Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

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Questions
1 What is the kind of relationship between Ω and ω?
A Many-to-one
B One-to-many
C One-to-one
D Many-to-many

Answer:One-to-one
2 If ak is the filter coefficient and āk represents the quantized coefficient with Δak as the quantization error, then which of the following equation is true?
A āk = ak.Δak
B āk = ak/Δak
C āk = ak + Δak
D None of the mentioned

Answer:āk = ak + Δak
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3 If pk is the set of poles of H(z), then what is Δpk that is the error resulting from the quantization of filter coefficients?
A Pre-turbation
B Perturbation
C Turbation
D None of the mentioned

Answer:Perturbation
4 If the poles are tightly clustered as they are in a narrow band filter, the lengths of |pi-pl| are large for the poles in the vicinity of pi.
A True
B False

Answer:False
5 Which of the following operation has to be done on the lengths of |pi-pl| in order to reduce the perturbation errors?
A Maximize
B Equalize
C Minimize
D None of the mentioned

Answer:Maximize
6 The sensitivity analysis made on the poles of a system results on which of the following of the IIR filters?
A Poles
B Zeros
C Poles & Zeros
D None of the mentioned

Answer:Zeros
7 The quantization inherent in the finite precision arithmetic operations render the system linear.
A True
B False

Answer:False
8 In recursive systems, which of the following is caused because of the nonlinearities due to the finite-precision arithmetic operations?
A Periodic oscillations in the input
B Non-Periodic oscillations in the input
C Non-Periodic oscillations in the output
D Periodic oscillations in the output

Answer:Periodic oscillations in the output
9 The oscillations in the output of the recursive system are called as ‘limit cycles’.
A True
B False

Answer:True
10 Limit cycles in the recursive are directly attributable to which of the following?
A Round-off errors in multiplication
B Overflow errors in addition
C Both of the mentioned
D None of the mentioned

Answer:Both of the mentioned

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